Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Mazda > MX-3
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
Thread Tools
Old 02-07-2019, 03:21 PM   #1
AF Newbie
Join Date: Feb 2019
Location: SACRAMENTO, California
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
1994 mx3 GS 1.8 Manual SMOG Issues

Confused on Smog Results
1994 Mazda mx3 GS 1.8 V6. After looking at past maintenance records, I find that this vehicle has history of High HC and NOX. Also, it is on its third Catalytic Converter. I just purchased the car and it runs great and does not have any CEL's and is an OBD-1 vehicle. I have been on many sites and still don't have a clear answer and also visited a Star Certified Smog Shop and was told that Mazda in general have high emissions.

I have to get the car smogged to register and after a visual on the car, I found that the Catalytic Converter is still fairly new.

I am reluctant to take it in for smog until I can determine why a history of High HC and NOX

It does have a pre-cat but I have been told that it is not measured however, no additional information. I am curious if that could be part of the problem.

I just changed the plugs with NGK and found the old plugs coated with carbon, all 6. I have concluded that the primary city driving is more than likely the culprit.

I have also ordered new Oxygen sensors, again ngk, and will be putting on the weekend.

I feel that I am over-looking something and really need professional guidance. I am a Disabled Vietnam Vet and now 74 years old.

Having work on Helicopters for over 20 years, I am confident that I can fix most things but it is difficult to resolve problems that I am confused about.

Also, I am even more reluctant to take it into a shop since I am on a low fixed income and when I hear $500+ it is demoralizing.

What do you think?? and thanks in advance
Vietnamvet is offline   Reply With Quote


Go Back   Automotive Forums .com Car Chat > Mazda > MX-3

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 12:46 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
no new posts